AQA A2 Geography unit 4B 2013 June

For the spearman's rank between figure P3 and figure P4

For this, it shows the correlation between the size of the seismic event and the quantity of the seismic events, and the anomalies. The anomalies tend to be the big events; Darfield earthquake, Christchurch (both in Feb and June) where the amount of joules released is very high (insert figures here) and the quantity of quakes is relatively low. There is then a subsequent increase in the quantity of quakes with a high amount of joules released overall which then proceeds to gradually decrease over time, suggesting that the amount of aftershocks decreased as time progresses from the original event.

Examples from the graph: Big earthquake on the 4th Sept (Darfield) with one big event and several smaller quakes with total energy release of around 200TJ, whilst the day after, it sees a massive spike in shocks to around 71 quakes with a smaller energy release of around 11.2TJ. (I can't see the lines properly on my print out so these are only rough guides).

You also need to be able to explain what a logorithmic graph shows (and determine relative joules measurements) and also the advantages and disadvantages of a semi-log graph.

Holy moly. T

here are some quite different results here. Is that for Spearman's? I have to admit I didn't do mine myself, it was done by my geography teacher..

I got -0.36 for P1 and P2
P3 and P4 I got 0.304

For this, it shows the correlation between the size of the seismic event and the quantity of the seismic events, and the anomalies. The anomalies tend to be the big events; Darfield earthquake, Christchurch (both in Feb and June) where the amount of joules released is very high (insert figures here) and the quantity of quakes is relatively low. There is then a subsequent increase in the quantity of quakes with a high amount of joules released overall which then proceeds to gradually decrease over time, suggesting that the amount of aftershocks decreased as time progresses from the original event.

Examples from the graph: Big earthquake on the 4th Sept (Darfield) with one big event and several smaller quakes with total energy release of around 200TJ, whilst the day after, it sees a massive spike in shocks to around 71 quakes with a smaller energy release of around 11.2TJ. (I can't see the lines properly on my print out so these are only rough guides).

You also need to be able to explain what a logorithmic graph shows (and determine relative joules measurements) and also the advantages and disadvantages of a semi-log graph.

Can anyone explain why the effects were worse in Christchurch, than they were in Darfield and other earthquakes?

[INDENT] For either of the earthquakes (Darfield or Christchurch) how were they prepared?[/INDENT]

Most of the deaths (115 people) were due to a building collapse in Christchurch and apparently it was constructed by an inexperienced architecture and overall the building was poorly constructed i'm pretty sure there are websites on that and stuff

Can anyone explain why the effects were worse in Christchurch, than they were in Darfield and other earthquakes?

There's actually hardly any impacts on the Canterbury earthquake... Posted from TSR Mobile

Impacts of the quake:

Social-
185 dead.
Over a 1000 injured.
Houses damaged or destroyed.
Temporary job loss from destroyed buildings. (PGC)
Thousands off homes face demolition due to liquefaction creating unstable structures. .
70 000 fled the city in the first week. (Many have returned as conditions improved)

Economic-
$40bn cost of damage.
Business premises destroyed or damaged.
Outwards migration of skilled workers from Christchurch.
Large parts of Christchurch's CBD cordoned off for up to two years.
Loss of tourism revenue. (minor)
Electricity and communication lines lost initially.


Environmental-
Liquefaction.
Landslips and mudslides.
Sewage pipes flooding into the environment.
Rock cliffs in Port Hills collapsed.

There you go... there is probably alot more!

That's the Christchurch earthquake, I meant the darfield one:P Posted from TSR Mobile

After doing spearmans rank today, I might do chi squared tomorrow and see if there's any difference


Posted from TSR Mobile